Timer



FIG. 1 is a perspective view of a timer;

FIG. 2 is a front view of the timer;

FIG. 3 is a back view of the timer;

FIG. 4 is a left side view of the timer, the right side being the same;and,

FIG. 5 is a top view of the timer, the bottom view being the same.

The ornamental design for a timer, as shown and described.